Question about 1992 Chevrolet Astro Extended
Heater cores been replaced systems been flushed thermostate been replaced yet I get just warm air from heater. heater valve is working. It was back flushed via a heater hose that connects to the intake and it belched a bunch of water when it was getting flushed and after that the heater worked great for one day and then went back to warm. Thought about an air block but wondering how to get it out. Tried everything pulling hose running pressure through the system nothing works except that one time. Thought maybe something is blocking in the block don't know.. got any ideas?
Its your vacum valve behind the heater matrix in the engine compartment LHS
Posted on Jun 23, 2009
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Posted on Jan 02, 2017
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